[MAHOUT-1644] [JDK8] errors when compile the module math-scala with JDK8 and maven dependency org.scala-lang:scala-library

• Type: Dependency upgrade
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.9
• Fix Version/s: 0.10.0
• Component/s: build-classic
• Labels: build maven
• Assignee: Unassigned
• Reporter: zhubin
• Created: 10/Mar/15 03:44
• Updated: 13/Apr/15 10:21
• Resolved: 18/Mar/15 00:56

Description

[INFO] Compiling 12 source files to /root/bigtop/dl/mahout-distribution-0.9/math-scala/target/classes at 1425956054808
[ERROR] error: error while loading ConcurrentMap, class file '/usr/java/jdk1.8.0_40/jre/lib/rt.jar(java/util/concurrent/ConcurrentMap.class)' is broken
[INFO] (bad constant pool tag 15 at byte 2448)
[ERROR] error: error while loading CharSequence, class file '/usr/java/jdk1.8.0_40/jre/lib/rt.jar(java/lang/CharSequence.class)' is broken
[INFO] (bad constant pool tag 15 at byte 1501)
[ERROR] error: error while loading Comparator, class file '/usr/java/jdk1.8.0_40/jre/lib/rt.jar(java/util/Comparator.class)' is broken
[INFO] (bad constant pool tag 15 at byte 5003)
[ERROR] three errors found

The default version of org.scala-lang:scala-library in module math-scala is 2.9.3, and in order to compile with JDK8, it needs to upgrade the scala version to 2.10.3+